I got my period, or what it should have been my period, last week. It was a few days late and it lasted only 3 days. The first day looked like my normal period, cramps and heavy flow, then the last two was just spotting. My usual periods last at least 6 days and are always heavy. I have been feeling nauseous this week and threw up a couple of times, which is not normal in me. I have also had a pulling sensation on my lower abdomen and felt really tired. Could I be pregnant, even thought I just got my "period"? It just doesn't make sense to me. Could it be just stress? I do have unprotected sex with my boyfriend, but he NEVER comes inside me.